Mutual coupling in MIMO systems

Sule, Suki Dauda

Abstract

The drive towards greater efficiency in communications systems has led to the birth of many new technologies and considerable improvements in existing systems over the last 20 years. These developments have been underpinned by increasing demands for higher data speeds, capacity and reliability by end users on a global level. Wireless communications systems have witnessed rapid transformations with this regard. Numerous enhancements in data capacities have been the hallmark of these systems. One of the principal components in achieving improved performance in wireless systems is the antenna system. Single Input Single Output (SISO) antenna topologies have traditionally been employed in wireless links. As the demand for higher data rates have persisted various limitations have arisen. Multiple Input Multiple Output (MIMO) antenna topologies have provided promise of the desired system capacity and reliability. Since MIMO systems employ two or more antenna pairs simultaneously, the effects of mutual coupling become a significant consideration in the quest to achieve high system performance. Therefore a clear understanding of mutual coupling effects with varying conditions in necessary for practical purposes. A lot of work has already been done on this subject. This thesis shall seek to substantiate some fundamental evidence on the relationship between mutual coupling effects and antenna element separation. The procedure shall involve the use of proven computer aided design software to achieve this purpose. Microstrip antennas (used interchangeably with patch antennas), widely known for their efficacy in wireless communications applications will be used for the tests. Specifically the more common linearly polarized rectangular microstrip antenna shall be utilised.

Citation

Sule, S. D. Mutual coupling in MIMO systems. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4209068

• Thesis Type: Thesis
• Deposit Date: Sep 28, 2011
• Publicly Available Date: Feb 22, 2023
• Keywords: Engineering; Wireless communication systems; Mutual coupling; Multiple input multiple output systems
• Public URL: https://hull-repository.worktribe.com/output/4209068
• Additional Information: Engineering, The University of Hull
• Award Date: Jan 1, 2009